JPS59143502A - Residual soil treating plate in walking type agricultural cultivator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention drives the rotary shaft of a walk-behind agricultural vehicle via a bevel gear transmission and rotates the rotary shaft by 1800 degrees. When digging trenches using a farm vehicle with this configuration, the direction of rotation of the rotary shaft can be switched between forward rotation and reverse rotation. The purpose of the invention is to propose a residual tillage treatment board that is optimal for both of the following: a transmission case that transmits the power of the prime mover to the left and right running wheels and the rotary shaft Q of the tilling section; The axial center of the PTO shaft extending rearward from the upper part on the side opposite to the prime mover and the axial center of the drive shaft that hangs down from the rear of the PTO shaft via a bevel gear transmission are the left-right center line of the aircraft. The lower part of the drive shaft is supported by the bevel gear case so as to match X-X. The rotary shaft is supported by the case, and the rotary shaft is rotated by rotating the drive shaft case Q around the axis of the drive shaft against the bevel gear case Q.
A walk-behind agricultural vehicle (Q), which is configured to rotate at 0° on a plane and switch the direction of rotation of the rotary shaft between forward and reverse rotation, is equipped with a drive shaft case (hereinafter referred to as the residual tillage treatment plate). However, when the rotary shaft is rotating in the forward direction, the remaining tillage treatment plate is fixed to the Q side so that it is lower than the rotary cover. Q is arranged so that it is located toward the tail wheel side.
This exists.

The drawings exemplified in Q below (based on which the present invention will be specifically explained. (5
), a handle (13), etc. It is a walking agricultural vehicle. The power of the prime mover (1) is powered by the engine pulley (1).
The input shaft (181 & This is a fixed gear (191, (f)) which is fixed and selectively slides and meshes with the intermediate gear (51) which meshes with the fixed gear (191) and the fixed gear (19) mentioned above. Sliding gears (21) and (22) are intermediate shafts -)
& This is wedged so that it can slide. The transmission gear (241, which is fixed to the intermediate shaft) (the transmission gear (241+'), and the wheel shaft (25) through the meshing transmission device (not shown)
is driven, and the wheel axle (251 & this device) is configured.

@2) is an adjustment hole drilled in the wheel axle (25) to adjust the distance between the tracks of the left and right running wheels (2) and (2)'.

In addition, the input shaft (181 & here is a sliding gear (26) for transmitting power to the rotary shaft (4) of the tilling section (3), (
27) is slidably wedge-fitted into the intermediate shaft □□□) & the fixed gear fixed to the (i30+) and (i30+) by selective sliding engagement.

It extends rearward from the top of the transmission case (5).
The front end Q of the PTO shaft (6) is connected to the intermediate shaft (2).
) (which is fixed to the bevel gear B@2) and drives the storage position PTO shaft (6). A bevel gear C (aa) is fixed to the rear end of the PTO shaft (6), and the bevel gear C@
3) meshes with the upper end of the drive shaft (7) [the fixed bevel gear Dm] to drive the drive shaft (7). The drive shaft (7) hangs downward via a bevel gear transmission device consisting of the rear part of the PTO shaft (6) (bevel gear 0 country, bevel gear D@4 shown here). The axes of the PTO shaft (6) and drive shaft (7) are both supported by a bevel gear case (8) so that they align with the left and right center line of the aircraft. (8) is the bolt (c) on the rear of the gearshift case (5)
It is fixed with something like this.

The lower part of the drive shaft (7) (this is where the small bevel gear (44) is wedge-fitted, and the large bevel gear 5 which is in mesh with the small bevel gear) is fixed to the rotary shaft (4). , drive shaft (7)
The rotary shaft (4) is supported at the lower part of the drive shaft case so that the rotary shaft (4) is driven in a perpendicular position to the drive shaft case.

The upper part of the drive shaft case (9) is the bevel gear case (8).
Insert the lower part of the drive shaft (7) around the axis of the drive shaft (7) (to allow the drive shaft case (9) to rotate, use a screwdriver or a lock) to secure the bevel gear case (8) and support. has been done. The cylindrical part (381 has a locking hole) into which the bevel gear case (8) of the drive shaft case (9) is fitted, is bored at the position Q where (89+' faces each other with a phase of 180°) and the locking hole 9
), or locking hole Gq91' + bevel gear case (8
) Q can be inserted and removed Q installed locking pin (c) 0)
It is configured so that the tip of the hole is engaged and the locking state is maintained with the locking hole 09) or the locking hole (a))'. .

Therefore, after releasing the locking state of the locking pin 0) with the arrow (in the direction of the wing (pull the locking hole A9)), turn the rotation lever 03.
) to move the drive shaft case (9) in the direction of the arrow (to) or (g) as shown in Fig. )', the rotary shaft (4) also rotates 180 degrees in plane, and the left and right sides can be switched. In other words, Fig. 4Q shows a state in which the locking pin ←0) is engaged in the locking hole ←9).
The large bevel gear (45) is located to the right of the left-right center line XX of the aircraft, and at this time the rotary shaft (4) is indicated by the arrow
It rotates in the direction Q.

In addition, Figure 5 shows the state in which the locking hole (to)')'woko locking pin←0) is engaged, and the large bevel gear decoy is located on the left side of the left-right center line At this point, the rotation axis (4) should rotate twice in the direction of the arrow (B).
This will happen.

In this way, by rotating the 0-axis rotary shaft (4) by 1800 planes, the direction of rotational force of the rotary shaft (4) can be switched between forward rotation, that is, the direction of arrow (a), and reverse rotation, that is, the direction of arrow (b). pJ ability (this is composed of.

Grooving work is carried out by attaching groove digging claws ← 6 of a commonly used type to the left and right sides of the rotary shaft (4) thus constructed. (lO) is a residual tillage treatment plate having a desired shape, for example, a flat plate shape or a plow shape, and is used to plow the uncultivated land in the center that occurs at the lower part of the drive shaft case (9) during trench digging work. The left and right groove digging claws 6) are used to move the left and right grooves separately. Since it is installed at a lower position than the rotary cover (11), when the drive shaft case (9) is rotated 180 degrees, the residual tillage treatment plate (10) also rotates. In other words, when the rotation direction of the rotary shaft (4) is as shown by the arrow (A), the running wheel (2+) is on the t2f side. At the time of (b), the rotary frame moves toward the tail wheel (12) and is placed at the position of the remaining tillage treatment plate Qol'.67] is the rotary frame. The drive shaft case (9) passes through the central part Q of G171, and the front end is the hitch Q.
81 G is fixed, and the rear end Q is attached with a tail wheel (21) via a fitting 09).

On the left and right sides of this mounting body 9) (this is where the tail wheel (12), resistance rod, twin tail wheels, etc. are attached), the rotary frame care cover (11) is fixed. It is worn.

Next, the operating state of the present invention will be explained in terms of trench digging work. First, when the direction of rotational force of the rotary shaft (4) is normal rotation, that is, rotation in the direction of arrow (A) *This is the case. When the locking pin kol is inserted into the locking hole mH, as shown in FIG.
It will be located more on the right side, and the lower axis (4) &
The groove-digging claw G161 attached thereto is set in the rotational direction of the arrow (A). Next (here), operate the transmission mechanism (not shown) to move the sliding gear (a) to the intermediate gear @1) (this meshing, the left and right running wheels (2), (2)' are indicated by the arrows). Set the sliding gear (26) to rotate.Meanwhile, operate the transmission mechanism (not shown) to change the sliding gear (26) to the fixed gear (26), eJ
Select O1+, set the desired rotational speed of the meshing rotary shaft (4), and operate the main clutch lever (17) to control the power Q of the prime mover (1) via a power connection/disconnection mechanism (not shown). Ditching work is carried out.The direction of movement of the machine at this time is the direction of the arrow (G), and the trenching adhesive 6) acts against the field surface O from the bottom to the top, so-called up. It works by cutting, releasing soil to the left and right to dig trenches. The remaining tillage processing plate (10) is located behind the groove digging claw 06) since the direction of movement of the machine is shown by the arrow, and the groove digging claw ← 6) separates the soil in the central part, which cannot be tilled, to the left and right. It has the function of moving the soil and releasing it along with the soil that is released to the left and right by the groove digging claws 06). In this way, a V-shaped groove with a predetermined width and depth is formed. Because of this, when creating the left and right running wheels (2) and (2)', the width of the groove must be narrower than the width of the groove.This makes the left and right balance of the aircraft extremely poor. The performance of the ditch digging work depends on the driving skills of the operator, making it a difficult task for beginners.

However, if the same trenching work is performed by reversing the direction of rotation of the rotary shaft (4), that is, by rotating it in the direction of arrow (b), this problem of left-right balance of the machine can be solved. Next, the trick of trench digging work using this reversal will be explained. Pull the locking pin 0o) to release the locking state with the locking hole ←9), operate the rotation lever ←3) to rotate the drive shaft case (9) 1800 times, and lock the locking hole t39). '
When the locking pin 00) is engaged, the large bevel gear 05) moves to the left of the left-right center line ) (The installed groove digging claw ← 6) is also swapped left and right. Grooving claw 06)
′ position, and the direction of rotation is also indicated by the arrow (b).
The direction will be At this time, the residual tillage processing plate (1o) also rotates the drive shaft case (9) by 180 degrees (accompanied by this, the rake force bar (II) moves from front to rear without interfering with the tail wheel ( 12) side, that is, the position Q of the residual tillage treatment plate (1o)' (not shown by the chain line in Fig. 1) is set. When these are engaged, the left and right running wheels (2) (21 rotate in the direction of arrow (C)), and the direction of movement of the aircraft at this time is in the direction of arrow (C).
The direction of rotation of the grooving claw 66) is the direction of the arrow (B), and its direction also corresponds to the direction of the arrow (B), that is, the direction of the grooving claw t shown by the chain line in FIG. 46)'
Q-up cuff t, as in the case of forward rotation.
The trench digging work is carried out under the condition of action. In this case as well, the residual tillage processing plate (10) is positioned Q behind the groove digging claw (46), has the same effect as in the case of forward rotation, and has a U-shape with a predetermined width and depth. A groove is formed, but in this case, the left and right running wheels (2) and (2)' will run in front of the groove that is about to be formed, so the width of the groove that will be formed is Left and right running wheels (2), (2)' regardless
This can be adjusted using the adjustment hole (52) to make the outside 1] wider, so the left-right balance of the machine is good, and even beginners can easily perform ditch digging work (
This is what happens.

The explanation of the trench digging work below is a general trench digging work in which the left and right soil is released to the left and right using the left and right trench digging claws (06). In addition to this general trenching work, the left and right trench digging claws α6) are used for trenches near pillars, etc.
Soil is always dumped in one direction, either the left side or the right side. In this one-sided trench digging, there are many uncultivated areas near the pillars, and the reaction force generated by the trench digging claw (46) increases accordingly.
Although it is a difficult task even for an expert, if this one-sided trench digging is done using reverse rotation, the point of reaction force generated by the trench claw (46) will be closer to the wheel axle (25). This makes it very easy to maneuver.

Also, depending on the field conditions, the work efficiency may be higher if the rotation is performed in the forward direction.
Therefore, it is important to distinguish between forward rotation and reverse rotation.

As described above in detail, the residual tillage processing plate of the walking agricultural vehicle according to the present invention Q rotates the drive shaft case by 180 degrees, so that the rotary shaft rotates in an 18o0 plane, and the direction of rotation can be changed between normal and reverse rotation. The drive shaft case is configured so that it can be switched between
Moreover, by setting the position Q below the rotary cover, it is possible to set the residual tillage treatment plate at a predetermined position corresponding to each direction of rotation, without having to change the position of the left tillage treatment plate between forward and reverse rotations. The position of Q is automatically set (this is because the conventional forward/reverse switching device is replaced with a separate Q using gears, etc.). There is no need to change the direction of rotation (corresponding to the direction of rotation), and there is no need to change the direction of rotation, and it is possible to immediately switch between forward rotation and reverse rotation for each work and field condition, which improves work efficiency. Not only does it make a great contribution, but it also has the excellent feature of being extremely easy to handle, even for beginners.

[Brief explanation of the drawing]

The attached drawings are drawings illustrating embodiments of the present invention, in which Fig. 1 is a side view of a walk-behind agricultural vehicle, Fig. 2 is a plan sectional view of the main parts of Fig. XX line Q in Figure 2
4 is a cross-sectional view of the main part along Y-Y line Q in FIG. 2, and FIG. FIG. In these drawings Q, +1) is the prime mover, (2), (
2)' are left and right running wheels, (3) is a tiller, (4) is a rotary shaft, (5) is a transmission case, (6) is a PTO shaft,
(7) is the drive shaft, (8) is the bevel gear case, (9)
is a drive shaft case, (10) and (]o)' are residual tillage treatment plates, (11) is a rotary cover, and (12) is a tail wheel. Patent Applicant's Representative Patent Attorney Ike Koshi Manchu VFigure 1. 1 ″ Salary≦Figure≠＞l

Claims (1)

[Claims] The power of the prime mover (1) is transferred to the left and right running wheels (2), (2)'
and the rotary shaft (4) of the tilling section (3), the transmission case (5) that transmits the transmission, and the counter-motor (1) of the transmission case (5).
The PTO shaft (6) extends rearward from the second part on the side.
The axis of the drive shaft (7) hanging down through the rear Q-bevel gear transmission of the PTO frame (6) is aligned with the left-right center line X-Xtt of the aircraft. The bevel gear case (8) is supported by the lower part Q of the drive shaft (7), and the lower part Q of the drive shaft (7) is supported so that the rotary shaft t4) is driven at right angles to the drive shaft (7) through the bevel gear transmission. The rotary shaft (4) is supported by the drive shaft case (9), and the drive shaft case (9) is rotated Q about the axis of the drive shaft (7) in relation to the bevel gear case (8) &
A walk-behind agricultural vehicle (here, the above-mentioned Drive shaft case (9)
) is fixed so as to be above the rotary cover (11), and the residual tillage treatment plate (10)
When the rotary shaft (4) is rotating forward (A), Q is toward the running wheels (2), (2)', and when it is rotating in the opposite direction (B), this is the tail wheel (
12) A walking-type agricultural vehicle (a left-cultivation processing board for a vehicle), characterized in that it is arranged so as to be located on the side.